View Full Version : Two 12" Kicker L7's. Port Area?

04-07-2009, 12:01 AM
Designing a box (ported) for two kicker L7's. I've got all the dimensions so far. It's going to be a little over 4 cu.ft with a port thats tuned to just a tad over 35Hz. My question is... with the dimensions as they are, the port area comes out to exactly 50 in.sq. Is 50 in.sq enough for two L7's to not get port noise? This will be my first ported build.

Thx for any suggestions :)

04-07-2009, 12:06 AM
Its a bit low if using a slot port design.Port noise will partly be affected by tuning.lower tuning tends to bring out port noise if there is an insuffient port,etc.

04-07-2009, 12:09 AM
Do you think it would help any if I added 45* bracing to the corner of the L in the slot port and used a router to have smooth curved corners at the exit of the port?

s10 with 3 15's
04-07-2009, 05:01 AM
i did one for a L5 15 it was 111 square inches of port area tuned to 35 hrtz rounded over the port opening and the back of the port and it has no port noise..